FT5320M features a combination of copper and aluminum gears with a thickened gear shaft of 2.0mm. Optimized center distance and a double ball bearing design ensure extended service life. Automatically enters protection mode after 8 seconds of stalling. Includes overheat protection at 70C. Equipped with 8-second overload protection and 70C overheat protection. When the servo stalls and the output torque exceeds the overload threshold for more than 8 seconds, it automatically reduces output to protection torque. Overload torque, protection time, and protection torque are customizable. Waterproof design for enhanced durability. Aluminum middle shell improves heat dissipation. Position sensor allows 180-degree rotation. Specifications: - Dimensions: 40 x 20 x 43mm - Unlimited mechanical rotation angle - Output shaft: 25T / 5.9mm - Gear material: Copper teeth - Bearing type: Ball bearing - Motor type: Core motor - Operating voltage: 6V, 7.4V - No-load speed: 0.185 sec/60 (6V), 0.151 sec/60 (7.4V) - No-load current: 100mA (6V), 120mA (7.4V) - Stall torque: 16.5 kg.cm (6V), 20 kg.cm (7.4V) - Stall current: 2.3A (6V), 3A (7.4V) - Rated load: 5.5 kg.cm (6V), 6.5 kg.cm (7.4V) - Rated current: 800mA (6V), 1000mA (7.4V) - Voltage range: 4V - 8.4V - Torque constant (Kt): 6.5 kg.cm/A - Control signal: PWM - Control system: Digital comparator - Operation angle: 180 degrees - Pulse width range: 5002500 sec - Electronic protection: 8-second stall protection - Temperature protection: 70C Note: Product labeling may vary between batches, but this does not affect performance. Color: Black & Red Material: Aluminum Package Contents: 1 x Servo Motor 1 x Set of Accessories Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerance: 13 cm.